NABTEB Mathematics 2025 Objective — Question 45
Question 45 of 60 from the National Business and Technical Examinations Board (NABTEB) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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Find the value of y in Fig 3.5, given exterior angles 4y, 4y, 2y, 3y, 5y of a polygon.
- A. 15 degrees
- B. 18 degrees
- C. 20 degreesCorrect
Explanation
Exterior angles of a polygon sum to 360: 4y+4y+2y+3y+5y=360, so 18y=360, y=20 degrees.
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